Don't you just hate this? No, I have not discovered any NEW lies on top of lies. But the memory still hurts!
I guessed you just have to feign memory loss of the existence of OW and not mention her at all. I know it's d@mn hard. I don't think you should confront them (H and OW) together, it makes you look like the d@rned pitiful wife who comes up and tries to make trouble. (Sorry... I know I sound harsh. BUt confronting H and OW is a NO NO. I mean we ACT As-If there is no such person, right?)